Concrete-surface-finishing machine



P. C. McARDLE.

CONCRETE SURFACE FINISHING MACHINE.

APPLICATION FILED OCT. 26. 19l8.

1,344,916. PatentdJune29,1920.

1 737 "Imam"? D- T 'wE OFFICE-1:11

se. M DL'E, or CHICAGO, ILLINOIS.

To all whom it concern):

Be it known that I, PETER G. MoAnnLE, a

citizen of thefUnited States, and -a resident of'the city of Chicago, in the county of Cook and State of Illinois, have invented'certain new and useful Improvements in Concrete- Surface Finishing'Machines {and 1 do hereby declare that the followingis a; full, clear, and exact description "of the same, reference being had to the accompanying"drawings,

and to theThumeralsof referencemarked,v

which form afpart of this1spec1ficav thereon,

tioil; p

This invention relates to an improved form of a concrete'finishingmachine of sim- V ple and inexpensive construction, wherein a roller has finishing meansjassociated there v with to afford a means whereby -.-a {concrete surface "may be simultaneously rolled and It is an object of this invention to provide a device adapted to simultaneously roll and finisha concrete surface. v It is also an object of the "invention to equip a roller with amean's adaptedto finish a concrete surface as it is rolled.

Another object of this invention is the construction of a machine adapted to simultaneously roll and finish the surface of a concrete surface-as the machine is pushed or pulled th'ereover. 1 v

It is furthermore an object of this invention to construct a finishing machine wherein" a' float finisher; is adapted to follow a roller over aconcrete surlaceto roll and finish the surface by the operation of the machine-,thereover. H

Itis an important object of the invention to provide a machine of simple and inexpensive construction adapted to'simultaneously roll and finish a concrete road orwalk by pushing'or pulling the machine"thereover.

the invention will be apparent from the disclosures in thedrawings and specification The invention (ina preferred form) is illustrated in'th'e drawings and hereinafter more fully described. i

' On the drawings: i

Fi ure' 1 is a side elevation of a rolling and ciples. of this invention and showing the parts} positioned to permit rolling and fin Other and further important objectsofo nishing machine embodying the prin oo c E'rn-sunreon-rmisnme MAoHmE.

ishingfof a concrete surface by? pulling the machine thereover. i

Fig.) 2is a topPlariview thereof.

on line 33 of Fig.1.

Fig.4 is an enlarged *fr' 'agment aryfdetail section taken on'line 4% of Fig; 1.}

"Asshownion the drawings;

Centrally formed on each end of theroller 1, is a hub 3, to the outside of which a brace or supporting arm 4, is disposed "with one end thereof apertured and rotatabl engaged on theaxle 2. The other end 0 each of the arms at, has an apertured flange 5, in te'grallyformedthereon at an anglethereto, to permit retaining bolts 6, to be pro- U 1 Specificationof Letterslatentf P t t J 29,19 Applicationfiled' Octbher as, 1918. sci-m1 at, 259,795; 3 7' v is "anenlarged detail section 2 jected therethi'ough andjinto ajlong front v float or finishing board 7',"to securely'hold.

said front finishing float secured to said arms 4, in aposition parallel to the r0ller1.

Disposed on each end of the axle 2, to the outside of the arms his a washer 8. R0- tatably mounted on the axle 2, to the xoutside of the Washers 8, are the innerparallel ends of handle tines or forks 9, which are bent inwardly toward one another and have the outer ends 'thereo'f'disposed parallel to each-other and apertured to receive bolts 10, to rigidly hold said tines 9, secured on opposite sides of the lower end of a handle 11. Integrallyformed'Or rigidly secured on the inner end of each of the tines 9, on the opposite side of theakle 2, from said tines is an inclined finger 'or "lifti12, having a hook or projection 13., integrally formed thereon, and projecting inwardlyun'der the arm 4.

A washer 14, is engaged on' each end of a the axle 2, to the outside of the handle tines 9, to separate the same from the inner aper-e tured ends of a pair of braceor supporting arms 15, one of which is rotatably engaged oneach end of said axle 2. The outerends of'the arms 13, are bent at an angle to form flanges 16 which are apertured' to permit bolts 17 to projecttherethrough to rigidly hold a rear float or finishing board 18, in aposition parallel to the roller: Rigidly secured to the inner side of'eachof the arms 15, is the'lower end of an upwardly directed hanger19, the upper end of which is bent inwardly to afford a hook or catch 20, for a purpose hereinafter described. A retaining of the axle 2, and is held in position by a to hold the float arms, the handle'tines and thewashers in position.

" The operation is as follows: I 7

With the parts. assembled as shown and described ;a simple and. effective concrete surface rolling and finishingmachlne is" ,produced which is adapted to be operated by means of a handle the upward and.

downward movement of which regulates or controls the relativepositions ofthe finishin floats which form a part of the machine.

' Whentheinachine is disposed upon a rough V concrete surface, s for example a concrete roador sidewalk, the machine may be pulled or pushed thereover to simultaneously roll and'fi'nish the surface.

A sh wn in F's e hine is positioned to permit the same to be pulled over a concrete surfacein the direction of the full line arrow, in which position the handlell, is in raised or elevated position, with the tinesi9,thereof engaged under the hooks 20,'of the hangersfl-il, thus holdingthe arms 15, and the rear float 18, in elevated position out of contact with thefi llrface to be finished. By elevating the handle 11,

by the lifts 1 2,' are swung downwardly thereby moving the hooks 13, away from or out'of engagement with the front float arms 4, permitting the front float 7, to drop by gravity withfthe lower surface thereof resting on the concrete surface to be rolled and finished, The n achine then pulled .by means of the handle 11, in the direction of the full ,line arrow, causing the drum or roller 1, to roll pressthe concrete thereby leveling the surface and at the; same i v to smooth or finish the. same. It will thus be noted that the machine simultaneously time acting as a tamping means to, close up c ea y hollows or openings which may have formed in the concrete. The action of the roller 1,"also forces any excess moisture or water from the concrete and -moves thefsame acrossthe surface. As the roller.

is rolled over the surface the trailing float 7, resting by gravity upon the surface is drawn :over the rleveled' surface, and acts rolls and finishes a-concrete surface. '7 When the "opposite side of the surface has been reached, and itis desired to go over the same portion ofthe surface or over a'n adjacent portion in an opposite direction asindicated by the dotted line, arrow in Fig. 1, it is not necessary to reverse the machine as a unit. The novel ing position byv means'other arrangement of the machine parts permits intothe dotted line position of Fig. 1, by

simply lowering the handle '11, thereby rais- V I ing the lifts 12,' the hooks 13, of which enring or washer 21, is disposed upon each end the handle and floats tobe'readily moved gage beneath the float arms 4, and raise the "same and the fioat 7, out of engagement with the concrete surface. WVith thelower- It will of'course be understood: that the machine is shown in a very simple form to 7 Perm h .sam to be on t u ted tfa 1 W 1 t o tsa f a e to afie d' nve s pe ion t nsv se y c ng tu n lly Over a c n t urfac by a s e ope a e:-

The machine maybe built in differentsiz es, i v

d. h Part may on t ucted 1 n a um e :Q ;ifi rent Ways. P a. rolling and finishing machine. Then dc sired th ront -1 at 75 may be wung up? 'wardly around the axle2, into a, position. out ofuse, resting upon gthe ,handleforks" 9, or the handle may be thrown 'to thel oprp itside, f the ol e in h ch pos io the rear float 18, rests upon the handle forks 9. The fioat members may alsobe arranged to be moved intoand-out of operat- Y t an h se shown.

.I am aware that numerous other-details of construction may be varied through a wide range without departing from the principles of this; invention, and I therefore do not purpose limiting thepatent granted otherwise than necessitated by the prior art.

l-claim as myinvention:

1. A rolling and finishing-device,; comprising-a roller mechan sm, an axle proectmg therethrough, finishing mechanisms connected therewith, and meanson'said axle I andengaging said finishing mechanisms for simultaneously moving 7 said roller and ad; justing said finishing; mechanisms. V 2. Ina device; of the class described, the combination with a rollermechanismfinish ing means adjustably: connected therewith, means for holding said finishing means in a-position outofuse, and 'a handle secured to saidme'ans forv moving said roller mechanism, said handle adapted-to -be adjusted toupermit said means to be lowered into :a position for use. 7 3. In a device of the class-described, the

eombination with-a surface levelingxroller me nism, is n a s iast y on-l ne'eted therewith and disposed on opposite sides thereof, and handle; means connected with said mechanism and means forsimultaneously actuating the same, said handle means adapted to be raised or lowered to move saidfinishing means out of and into operating position independently of said' prising a roller, a plurality of smoothing members on opposite sides of said roller and pivotally connectedtherewith, and a handle connected with said roller and with said members, said handle adapted to be operated to raise one of said members into a position out of use and lower theother member into a position for use to finish a concrete surface as it is leveled .by said roller. I

'5. A rolling and finishing device comprising roller means, finishing members connected therewith, meansfor simultaneously actuating said rollerand finishing members, and means, connected with said actuating means, for moving oneof said finishing members'out of operating position as the other finishing member is moved into a finishing position.

In testimony whereof I have hereunto subscribed myname 'in the presence of two subscribing witnesses.

v PETER o; MCARDLE. Witnesses: v f

E. W.VHEIPLE,-

R GE'rMAN. 

